body,html{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #fff;
}
.userHttp {
     position: fixed;
      top: 0;
      bottom: 0;
      right: 0;
      left: 0;
  overflow: scroll;
  background: #fff;
     .fixed{
        position: fixed;
        top: 0;
        z-index: 100;
        width: 100%;
     }
    .userHttpContent {
        padding-top: 120px;
        padding-right: 15px;
        padding-left: 15px;
    }
      .smlTit {
        border-left: 2px solid #008cff;
        background: #f8f8f8;
        height: 30px;
        line-height: 30px;
        text-indent: 10px;
        color: #606266;
        font-size: 28px;
        font-weight: 700;
        margin: 10px 0 5px;
      }
  
    p {
        font-size: 24px;
        line-height: 1.8em;
        margin-top: 10px;
        text-indent: 2em;
        color: #666;
    }
}